2022 Fiscal Year Final Research Report
Design and development of silica-based self-healing materials
| Project/Area Number |
20H02826
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Review Section |
Basic Section 36010:Inorganic compounds and inorganic materials chemistry-related
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| Research Institution | Waseda University |
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Principal Investigator |
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| Project Period (FY) |
2020-04-01 – 2023-03-31
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| Keywords | 自己修復材料 / シロキサン / ナノ構造制御 |
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| Outline of Final Research Achievements |
Siloxane (Si-O-Si) based materials are widely used in various fields due to their characteristics such as high thermal and chemical stability. Imparting self-healing functionality to siloxane-based materials is an important issue for increasing their lifetime and reliability. In this study, we designed lamellar organosiloxane films with a crack-healing ability and with improved hardness, adhesion to the substrate, and solvent resistance. Furthermore, we successfully created silicone elastomers based on new self-healing mechanisms by using cage-type siloxane/germoxane compounds as crosslinkers and healing agents.
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| Free Research Field |
無機合成化学
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| Academic Significance and Societal Importance of the Research Achievements |
本研究では、有機シロキサン材料の分子レベルからナノレベルでの精密構造制御により、従来のシロキサン系自己修復材料の課題を克服し、クラック等の損傷の高い修復能力と、高い熱的・化学的安定性、優れた機械的特性を兼ねそろえたシロキサン系自己修復機能材料を創出した。クラックの自己修復能を有するラメラ構造の有機シロキサンに関する成果は、保護コーティングなどとしての実用化に向けて重要な知見を与えるものである。また、カゴ型シロキサンやゲルモキサンを用いた修復機構は新規性が高く、今後の幅広い展開が期待できる。これらの研究成果は学術のみならず社会的にも大きな意義がある。
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